摘要
采用高效液相色谱法测定中药秦皮中泰皮甲素、秦皮乙素的含量．固定相为十八烷基硅烷健合硅胶柱，流动相为甲醇—水（24：76），检测波长348nm．浓度在16μg／ml～176μg／ml范围内线性关系良好，相关系数分别为0．9995，0．9994，加样回收率秦皮甲素99．1±1．5％（n=5），秦皮乙素99．8±2．5％（n=5）。本方法日内精密度和日间精密度分别为0．8％和6．2％．该方法简便、快速、准确。
The determination of fraxetin A and fraxetin B in Cortex Fraxini have been carried out by HPLC on the stationary phase:octodecyl-silicohydride bonded silica gel column. The mobile phase was methanol-water(24:76). The detection wavelength was at 348nm. There was a good linear relationship in a concentration range of 16μg/ml^176μg/ml. The correlation coefficients were 0. 9995 and 0. 9994,respectively. The recovery of the added sample were 99. 1 ±1. 5% (n=5) for fraxetin A and 99.8±2. 5%(n=5) for fraxetin B. This method showed 0. 8% of within-day accuracy and 6. 2% of between-day accuracy,involving the advantages of simplicity,quickness and accuracy.
出处
《中成药》
CAS
CSCD
1997年第10期40-41,共2页
Chinese Traditional Patent Medicine
